Damaged from building roof collapse.
How in the hell did roof collapse?" He kept on about the absurdity of the roof collapse, until he was swallowing his own laughter.
Bonaparte was away but arrived in time to see the roof collapse, Dr. Veit said.
Indian government officials say that the problems, including the partial roof collapse on Wednesday, are mostly minor mishaps.
People were everywhere, standing around watching the roof collapse and the tops of nearby trees catch fire.
"The heat was so intense it warped the metal trusses, and we had a partial roof collapse," Chief Grooms said.
He said that officials did not think there had been a roof collapse, but that they did not know what had caused the explosion in the sprawling mine.
12.01pm: Here is James Meickle's report with more details on this morning's events, including the roof collapse at the weightlifting arena.
For various reasons, such as high cost, lack of suitable boring implements, and fear of roof collapse, the use of black powder in mining did not spread rapidly, though it was widely accepted by 1700.
The cause was partly political — the state mine inspector's office was understaffed — and partly geological: the Rockies, in their chaotic rising, had left fractures in rock strata, which increased the chance of a roof collapse underground.
He said that the most likely cause was sparks from the drilling machine hitting sandstone layers between coal seams, but that investigators had not ruled out sparks from a conveyor belt or a roof collapse.
